Surface modification method and surface-modified elastic body
AssigneeSumitomo Rubber Industries, Ltd.
InventorYasuhisa Minagawa
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Abstract
The present invention provides methods for surface-modifying a rubber vulcanizate or a thermoplastic elastomer, which can cost-effectively provide a variety of functions, such as sliding properties, according to the application. The present invention relates to a method for surface-modifying a rubber vulcanizate or a thermoplastic elastomer as a target for modification, the method including: step 1 of forming polymerization initiation points on a surface of the modification target; and step 2 of radically polymerizing a non-functional monomer, starting from the polymerization initiation points, to grow non-functional polymer chains, and then radically polymerizing a fluoropolyether segment-containing functional monomer to grow functional polymer chains.
Claims21
A method for surface-modifying a rubber vulcanizate or a thermoplastic elastomer as a target for modification, the method comprising:
- step 1 of forming polymerization initiation points on a surface of the rubber vulcanizate or the thermoplastic elastomer;
- and
- step 2 of radically polymerizing a non-functional monomer, starting from the polymerization initiation points, to form non-functional polymer chains, and then radically polymerizing a fluoropolyether segment-containing functional monomer on the resultant non-functional polymer chains to form functional polymer chains while extending the polymer chains;
- wherein the non-functional monomer is at least one member selected from acrylic acid, acrylic acid esters, acrylamide, dimethylacrylamide, diethylacrylamide, isopropylacrylamide, hydroxyacrylamide, acryloylmorpholine, acrylic acid alkali metal salts, acrylic acid amine salts, methacrylic acid, methacrylic acid esters, methacrylamide, methacrylic acid alkali metal salts, methacrylic acid amine salts, and acrylonitrile.
Dependencies are inferred from the claim text.